Ensure there is valid context for DrawRectangle

[wxWidgets.git] / src / unix / mediactrl.cpp

diff --git a/src/unix/mediactrl.cpp b/src/unix/mediactrl.cpp
index 955d41fb8051d014736796b93e9121647ce4623a..cd29fba5d913a558c5d9599bfa2b9cc04c0d73c9 100644 (file)
--- a/src/unix/mediactrl.cpp
+++ b/src/unix/mediactrl.cpp
@@ -34,11 +34,14 @@
     #include "wx/timer.h"           // wxTimer
 #endif
 
     #include "wx/timer.h"           // wxTimer
 #endif
 

+#include "wx/filesys.h"             // FileNameToURL()

 #include "wx/thread.h"              // wxMutex/wxMutexLocker
 #include "wx/thread.h"              // wxMutex/wxMutexLocker

+#include "wx/vector.h"              // wxVector<wxString>

 
 #ifdef __WXGTK__
     #include <gtk/gtk.h>
 
 #ifdef __WXGTK__
     #include <gtk/gtk.h>

-#    include <gdk/gdkx.h>           // for GDK_WINDOW_XWINDOW
+    #include <gdk/gdkx.h>
+    #include "wx/gtk/private/gtk2-compat.h"

 #endif
 
 //-----------------------------------------------------------------------------
 #endif
 
 //-----------------------------------------------------------------------------


@@ -88,12 +91,12 @@
 //=============================================================================
 
 //-----------------------------------------------------------------------------
 //=============================================================================
 
 //-----------------------------------------------------------------------------

-//  GStreamer (most version compatability) macros
+//  GStreamer (most version compatibility) macros

 //-----------------------------------------------------------------------------
 
 // In 0.9 there was a HUGE change to GstQuery and the
 // gst_element_query function changed dramatically and split off
 //-----------------------------------------------------------------------------
 
 // In 0.9 there was a HUGE change to GstQuery and the
 // gst_element_query function changed dramatically and split off

-// into two seperate ones
+// into two separate ones

 #if GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR <= 8
 #    define wxGst_element_query_duration(e, f, p) \
                 gst_element_query(e, GST_QUERY_TOTAL, f, p)
 #if GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR <= 8
 #    define wxGst_element_query_duration(e, f, p) \
                 gst_element_query(e, GST_QUERY_TOTAL, f, p)


@@ -184,6 +187,7 @@ public:
     virtual double GetVolume();
 
     //------------implementation from now on-----------------------------------
     virtual double GetVolume();
 
     //------------implementation from now on-----------------------------------

+    bool CheckForErrors();

     bool DoLoad(const wxString& locstring);
     wxMediaCtrl* GetControl() { return m_ctrl; } // for C Callbacks
     void HandleStateChange(GstElementState oldstate, GstElementState newstate);
     bool DoLoad(const wxString& locstring);
     wxMediaCtrl* GetControl() { return m_ctrl; } // for C Callbacks
     void HandleStateChange(GstElementState oldstate, GstElementState newstate);


@@ -204,16 +208,33 @@ public:
     wxMutex         m_asynclock;    // See "discussion of internals"
     class wxGStreamerMediaEventHandler* m_eventHandler; // see below
 
     wxMutex         m_asynclock;    // See "discussion of internals"
     class wxGStreamerMediaEventHandler* m_eventHandler; // see below
 

+    // Mutex protecting just the variables below which are set from
+    // gst_error_callback() called from a different thread.
+    wxMutex m_mutexErr;
+    struct Error
+    {
+        Error(const gchar* message, const gchar* debug)
+            : m_message(message, wxConvUTF8),
+              m_debug(debug, wxConvUTF8)
+        {
+        }
+
+        wxString m_message,
+                 m_debug;
+    };
+
+    wxVector<Error> m_errors;
+

     friend class wxGStreamerMediaEventHandler;
     friend class wxGStreamerLoadWaitTimer;
     friend class wxGStreamerMediaEventHandler;
     friend class wxGStreamerLoadWaitTimer;

-    DECLARE_DYNAMIC_CLASS(wxGStreamerMediaBackend);
+    DECLARE_DYNAMIC_CLASS(wxGStreamerMediaBackend)

 };
 
 //-----------------------------------------------------------------------------
 // wxGStreamerMediaEventHandler
 //
 // OK, this will take an explanation - basically gstreamer callbacks
 };
 
 //-----------------------------------------------------------------------------
 // wxGStreamerMediaEventHandler
 //
 // OK, this will take an explanation - basically gstreamer callbacks

-// are issued in a seperate thread, and in this thread we may not set
+// are issued in a separate thread, and in this thread we may not set

 // the state of the playbin, so we need to send a wx event in that
 // callback so that we set the state of the media and other stuff
 // like GUI calls.
 // the state of the playbin, so we need to send a wx event in that
 // callback so that we set the state of the media and other stuff
 // like GUI calls.


@@ -255,16 +276,14 @@ IMPLEMENT_DYNAMIC_CLASS(wxGStreamerMediaBackend, wxMediaBackend)
 //-----------------------------------------------------------------------------
 #ifdef __WXGTK__
 extern "C" {
 //-----------------------------------------------------------------------------
 #ifdef __WXGTK__
 extern "C" {

-static gboolean gtk_window_expose_callback(GtkWidget *widget,
-                                           GdkEventExpose *event,
-                                           wxGStreamerMediaBackend *be)
+static gboolean
+#ifdef __WXGTK3__
+draw(GtkWidget* widget, cairo_t* cr, wxGStreamerMediaBackend* be)
+#else
+expose_event(GtkWidget* widget, GdkEventExpose* event, wxGStreamerMediaBackend* be)
+#endif

 {
 {

-    if(event->count > 0)
-        return FALSE;
-
-    GdkWindow *window = widget->window;
-
-    // I've seen this reccommended somewhere...
+    // I've seen this recommended somewhere...

     // TODO: Is this needed? Maybe it is just cruft...
     // gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(be->m_xoverlay),
     //                              GDK_WINDOW_XWINDOW( window ) );
     // TODO: Is this needed? Maybe it is just cruft...
     // gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(be->m_xoverlay),
     //                              GDK_WINDOW_XWINDOW( window ) );


@@ -281,9 +300,17 @@ static gboolean gtk_window_expose_callback(GtkWidget *widget,
     else
     {
         // draw a black background like some other backends do....
     else
     {
         // draw a black background like some other backends do....

-        gdk_draw_rectangle (window, widget->style->black_gc, TRUE, 0, 0,
+#ifdef __WXGTK3__
+        GtkAllocation a;
+        gtk_widget_get_allocation(widget, &a);
+        cairo_rectangle(cr, 0, 0, a.width, a.height);
+        cairo_set_source_rgb(cr, 0, 0, 0);
+        cairo_fill(cr);
+#else
+        gdk_draw_rectangle (event->window, widget->style->black_gc, TRUE, 0, 0,

                             widget->allocation.width,
                             widget->allocation.height);
                             widget->allocation.width,
                             widget->allocation.height);

+#endif

     }
 
     return FALSE;
     }
 
     return FALSE;


@@ -304,16 +331,20 @@ static gint gtk_window_realize_callback(GtkWidget* widget,
                                         wxGStreamerMediaBackend* be)
 {
     gdk_flush();
                                         wxGStreamerMediaBackend* be)
 {
     gdk_flush();

-    
-    GdkWindow *window = widget->window;
+
+    GdkWindow* window = gtk_widget_get_window(widget);

     wxASSERT(window);
 
     gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(be->m_xoverlay),
     wxASSERT(window);
 
     gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(be->m_xoverlay),

-                                GDK_WINDOW_XWINDOW( window )
+                                GDK_WINDOW_XID(window)

                                 );
     g_signal_connect (be->GetControl()->m_wxwindow,
                                 );
     g_signal_connect (be->GetControl()->m_wxwindow,

-                      "expose_event",
-                      G_CALLBACK(gtk_window_expose_callback), be);
+#ifdef __WXGTK3__
+        "draw", G_CALLBACK(draw),
+#else
+        "expose_event", G_CALLBACK(expose_event),
+#endif
+        be);

     return 0;
 }
 }
     return 0;
 }
 }


@@ -370,15 +401,10 @@ static void gst_error_callback(GstElement *WXUNUSED(play),
                                GstElement *WXUNUSED(src),
                                GError     *err,
                                gchar      *debug,
                                GstElement *WXUNUSED(src),
                                GError     *err,
                                gchar      *debug,

-                               wxGStreamerMediaBackend* WXUNUSED(be))
+                               wxGStreamerMediaBackend* be)

 {
 {

-    wxString sError;
-    sError.Printf(wxT("gst_error_callback\n")
-                  wxT("Error Message:%s\nDebug:%s\n"),
-                  (const wxChar*)wxConvUTF8.cMB2WX(err->message),
-                  (const wxChar*)wxConvUTF8.cMB2WX(debug));
-    wxLogTrace(wxTRACE_GStreamer, sError);
-    wxLogSysError(sError);
+    wxMutexLocker lock(be->m_mutexErr);
+    be->m_errors.push_back(wxGStreamerMediaBackend::Error(err->message, debug));

 }
 }
 
 }
 }
 


@@ -469,6 +495,15 @@ static gboolean gst_bus_async_callback(GstBus* WXUNUSED(bus),
                                        GstMessage* message,
                                        wxGStreamerMediaBackend* be)
 {
                                        GstMessage* message,
                                        wxGStreamerMediaBackend* be)
 {

+    if ( GST_MESSAGE_TYPE(message) == GST_MESSAGE_ERROR )
+    {
+        GError* error;
+        gchar* debug;
+        gst_message_parse_error(message, &error, &debug);
+        gst_error_callback(NULL, NULL, error, debug, be);
+        return FALSE;
+    }
+

     if(((GstElement*)GST_MESSAGE_SRC(message)) != be->m_playbin)
         return TRUE;
     if(be->m_asynclock.TryLock() != wxMUTEX_NO_ERROR)
     if(((GstElement*)GST_MESSAGE_SRC(message)) != be->m_playbin)
         return TRUE;
     if(be->m_asynclock.TryLock() != wxMUTEX_NO_ERROR)


@@ -489,14 +524,7 @@ static gboolean gst_bus_async_callback(GstBus* WXUNUSED(bus),
             gst_finish_callback(NULL, be);
             break;
         }
             gst_finish_callback(NULL, be);
             break;
         }

-        case GST_MESSAGE_ERROR:
-        {
-            GError* error;
-            gchar* debug;
-            gst_message_parse_error(message, &error, &debug);
-            gst_error_callback(NULL, NULL, error, debug, be);
-            break;
-        }
+

         default:
             break;
     }
         default:
             break;
     }


@@ -698,7 +726,7 @@ void wxGStreamerMediaBackend::SetupXOverlay()
 {
     // Use the xoverlay extension to tell gstreamer to play in our window
 #ifdef __WXGTK__
 {
     // Use the xoverlay extension to tell gstreamer to play in our window
 #ifdef __WXGTK__

-    if(!GTK_WIDGET_REALIZED(m_ctrl->m_wxwindow))
+    if (!gtk_widget_get_realized(m_ctrl->m_wxwindow))

     {
         // Not realized yet - set to connect at realization time
         g_signal_connect (m_ctrl->m_wxwindow,
     {
         // Not realized yet - set to connect at realization time
         g_signal_connect (m_ctrl->m_wxwindow,


@@ -709,24 +737,25 @@ void wxGStreamerMediaBackend::SetupXOverlay()
     else
     {
         gdk_flush();
     else
     {
         gdk_flush();

-    
-        GdkWindow *window = m_ctrl->m_wxwindow->window;
+
+        GdkWindow* window = gtk_widget_get_window(m_ctrl->m_wxwindow);

         wxASSERT(window);
 #endif
         wxASSERT(window);
 #endif

-
-    gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(m_xoverlay),
+        gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(m_xoverlay),

 #ifdef __WXGTK__
 #ifdef __WXGTK__

-                        GDK_WINDOW_XWINDOW( window )
+                        GDK_WINDOW_XID(window)

 #else
                         ctrl->GetHandle()
 #endif
                                   );
 #else
                         ctrl->GetHandle()
 #endif
                                   );

-

 #ifdef __WXGTK__
 #ifdef __WXGTK__

-    g_signal_connect (m_ctrl->m_wxwindow,
-                        // m_ctrl->m_wxwindow/*m_ctrl->m_widget*/,
-                      "expose_event",
-                      G_CALLBACK(gtk_window_expose_callback), this);
+        g_signal_connect(m_ctrl->m_wxwindow,
+#ifdef __WXGTK3__
+            "draw", G_CALLBACK(draw),
+#else
+            "expose_event", G_CALLBACK(expose_event),
+#endif
+            this);

     } // end if GtkPizza realized
 #endif
 }
     } // end if GtkPizza realized
 #endif
 }


@@ -957,6 +986,32 @@ wxGStreamerMediaBackend::~wxGStreamerMediaBackend()
     }
 }
 
     }
 }
 

+//-----------------------------------------------------------------------------
+// wxGStreamerMediaBackend::CheckForErrors
+//
+// Reports any errors received from gstreamer. Should be called after any
+// failure.
+//-----------------------------------------------------------------------------
+bool wxGStreamerMediaBackend::CheckForErrors()
+{
+    wxMutexLocker lock(m_mutexErr);
+    if ( m_errors.empty() )
+        return false;
+
+    for ( unsigned n = 0; n < m_errors.size(); n++ )
+    {
+        const Error& err = m_errors[n];
+
+        wxLogTrace(wxTRACE_GStreamer,
+                   "gst_error_callback: %s", err.m_debug);
+        wxLogError(_("Media playback error: %s"), err.m_message);
+    }
+
+    m_errors.clear();
+
+    return true;
+}
+

 //-----------------------------------------------------------------------------
 // wxGStreamerMediaBackend::CreateControl
 //
 //-----------------------------------------------------------------------------
 // wxGStreamerMediaBackend::CreateControl
 //


@@ -980,11 +1035,7 @@ bool wxGStreamerMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
     char **argvGST = new char*[wxTheApp->argc + 1];
     for ( i = 0; i < wxTheApp->argc; i++ )
     {
     char **argvGST = new char*[wxTheApp->argc + 1];
     for ( i = 0; i < wxTheApp->argc; i++ )
     {

-#if wxUSE_UNICODE_WCHAR
-        argvGST[i] = wxStrdupA(wxConvUTF8.cWX2MB(wxTheApp->argv[i]));
-#else

         argvGST[i] = wxStrdupA(wxTheApp->argv[i].utf8_str());
         argvGST[i] = wxStrdupA(wxTheApp->argv[i].utf8_str());

-#endif

     }
 
     argvGST[wxTheApp->argc] = NULL;
     }
 
     argvGST[wxTheApp->argc] = NULL;


@@ -1160,7 +1211,7 @@ bool wxGStreamerMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
 //-----------------------------------------------------------------------------
 bool wxGStreamerMediaBackend::Load(const wxString& fileName)
 {
 //-----------------------------------------------------------------------------
 bool wxGStreamerMediaBackend::Load(const wxString& fileName)
 {

-    return DoLoad(wxString( wxT("file://") ) + fileName);
+    return DoLoad(wxFileSystem::FileNameToURL(fileName));

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -1213,9 +1264,10 @@ bool wxGStreamerMediaBackend::DoLoad(const wxString& locstring)
                                GST_STATE_READY) == GST_STATE_FAILURE ||
         !SyncStateChange(m_playbin, GST_STATE_READY))
     {
                                GST_STATE_READY) == GST_STATE_FAILURE ||
         !SyncStateChange(m_playbin, GST_STATE_READY))
     {

-        wxLogSysError(wxT("wxGStreamerMediaBackend::Load - ")
-                      wxT("Could not set initial state to ready"));
-            return false;
+        CheckForErrors();
+
+        wxLogError(_("Failed to prepare playing \"%s\"."), locstring);
+        return false;

     }
 
     // free current media resources
     }
 
     // free current media resources


@@ -1235,11 +1287,18 @@ bool wxGStreamerMediaBackend::DoLoad(const wxString& locstring)
                                GST_STATE_PAUSED) == GST_STATE_FAILURE ||
         !SyncStateChange(m_playbin, GST_STATE_PAUSED))
     {
                                GST_STATE_PAUSED) == GST_STATE_FAILURE ||
         !SyncStateChange(m_playbin, GST_STATE_PAUSED))
     {

+        CheckForErrors();

         return false; // no real error message needed here as this is
                       // generic failure 99% of the time (i.e. no
                       // source etc.) and has an error message
     }
 
         return false; // no real error message needed here as this is
                       // generic failure 99% of the time (i.e. no
                       // source etc.) and has an error message
     }
 

+    // It may happen that both calls above succeed but we actually had some
+    // errors during the pipeline setup and it doesn't play. E.g. this happens
+    // if XVideo extension is unavailable but xvimagesink is still used.
+    if ( CheckForErrors() )
+        return false;
+

 
     NotifyMovieLoaded(); // Notify the user - all we can do for now
     return true;
 
     NotifyMovieLoaded(); // Notify the user - all we can do for now
     return true;


@@ -1257,7 +1316,11 @@ bool wxGStreamerMediaBackend::Play()
 {
     if (gst_element_set_state (m_playbin,
                                GST_STATE_PLAYING) == GST_STATE_FAILURE)
 {
     if (gst_element_set_state (m_playbin,
                                GST_STATE_PLAYING) == GST_STATE_FAILURE)

+    {
+        CheckForErrors();

         return false;
         return false;

+    }
+

     return true;
 }
 
     return true;
 }
 


@@ -1273,7 +1336,10 @@ bool wxGStreamerMediaBackend::Pause()
     m_llPausedPos = wxGStreamerMediaBackend::GetPosition();
     if (gst_element_set_state (m_playbin,
                                GST_STATE_PAUSED) == GST_STATE_FAILURE)
     m_llPausedPos = wxGStreamerMediaBackend::GetPosition();
     if (gst_element_set_state (m_playbin,
                                GST_STATE_PAUSED) == GST_STATE_FAILURE)

+    {
+        CheckForErrors();

         return false;
         return false;

+    }

     return true;
 }
 
     return true;
 }
 


@@ -1293,6 +1359,7 @@ bool wxGStreamerMediaBackend::Stop()
                                   GST_STATE_PAUSED) == GST_STATE_FAILURE ||
           !SyncStateChange(m_playbin, GST_STATE_PAUSED))
         {
                                   GST_STATE_PAUSED) == GST_STATE_FAILURE ||
           !SyncStateChange(m_playbin, GST_STATE_PAUSED))
         {

+            CheckForErrors();

             wxLogSysError(wxT("Could not set state to paused for Stop()"));
             return false;
         }
             wxLogSysError(wxT("Could not set state to paused for Stop()"));
             return false;
         }